Editor's Note: Green and red arrows refer to intraday stock price movement.

NEW YORK ( TheStreet) -- CHANGE IN RATINGS

AmerisourceBergen ( ABC) upgraded at Stifel from Hold to Buy. Valuation call, based on a $49 price target.

AK Steel ( AKS) downgraded at Keybanc from Buy to Hold. Company is facing lower metal spreads.

Bemis ( BMS) upgraded at BofA/Merrill from Underperform to Buy. Company can continue to deliver consistent growth in a volatile market.

Brocade ( BRCD) downgraded at Goldman from Neutral to Sell. $3.30 target. Consensus expectations remain too high.

Edwards Lifesciences ( EW) upgraded at Rodman from Underperform to Market Perform. $66 price target. Stock may be due to see some short covering.

Family Dollar ( FDO) upgraded at Goldman from Neutral to Buy. $60 price target. Company thrives in a choppy macro.

F5 Networks ( FFIV) upgraded at Goldman to Neutral. Valuation call, based on a $94 price target.

Gildan Activewear ( GIL) upgraded at FBR from Underperform to Market Perform. $27 price target. Stock is already pricing in lower potential near-term growth.

General Motors ( GM) upgraded at Ticonderoga from Neutral to Buy. $42 price target. Management will likely continue to cut costs.

Grainger ( GWW) upgraded at BofA Merrill from Neutral to Buy. $168 price target. Share price decline provides attractive upside opportunity.

Harris ( HRS) downgraded at Merriman to Neutral. Budget pressures will likely lead to further defense cuts.

IBM ( IBM) upgraded at Goldman to Buy. $195 price target. Company can continue to grow in a difficult environment.

Illinois Tool Works ( ITW) downgraded at BofA Merrill from Neutral to Underperform. $53 price target. More limited price upside relative to peers following the market correction.

Juniper Networks ( JNPR) downgraded at Goldman to Neutral. $27 price target. Company lacks near-term catalysts.

Lexmark ( LXK) downgraded at Goldman from Neutral to Sell. $25 price target. Company is facing challenges as its changes its business model.

MeadWestvaco ( MWV) upgraded at BofA/Merrill from Neutral to Buy. Stock is attractive, following a recent pullback.

NetApp ( NTAP) upgraded at Piper Jaffray from Neutral to Overweight. $58 price target. Company likely to hit projected sales targets.

Oasis Petroleum ( OAS) upgraded at UBS from Neutral to Buy. $4.95 price target. Improved '12 growth outlook and attractive valuation.

PNM Resources ( PNM) upgraded at Jefferies from Hold to Buy. $16 price target. Potential earnings upside from future rate case filings and/or planned cost reduction.

Sealed Air ( SEE) upgraded at BofA/Merrill from Neutral to Buy. Valuation call.

Stryker ( SYK) upgraded at Rodman from Market Perform to Outperform. $56 price target. Company is a market leader that's trading at an attractive valuation.

Tyson Foods ( TSN) upgraded at BMO from Market Perform to Outperform. $21 price target. Structural improvement to balanced portfolio creates upside.

Tyco ( TYC) upgraded at BofA Merrill from Neutral to Buy. $53 price target. Business mix should prove resilient.

Under Armour ( UA) upgraded at FBR from Market Perform to Outperform. $80 price target. Stock is attractive, following a 20% pullback.

VMWare ( VMW) upgraded at Credit Suisse from Neutral to Outperform. $115 price target. New licensing model should help boost growth.

VMware ( VMW) upgraded at Collins Stewart from Neutral to Buy. $108 price target. Company should benefit from cloud computing and attractive valuation.

End of report.
This article was written by a staff member of TheStreet.